You’ve built an API to solve technical problems, but you know that’s just the beginning. In addition to helping developers use it, you need to understand how they use it. You want to measure its performance and popularity and make adjustments based on what you discover.

Maybe some developers are seeing a lot of errors when making API calls or it’s taking too long for them to get to the first “Hello World.” Perhaps the number of developers converting to paying customers is below your expectations. You want to understand the usage of your API and ensure that customers use your API in the long term.